public ActionResult Update(Product produto )
        {
            ProductRepository<Product> dao = new ProductRepository<Product>();
            dao.Update(produto);

            return RedirectToAction("index", "Product");
        }
 public ActionResult Salvar(Product prod)
 {
     ProductRepository<Product> dao = new ProductRepository<Product>();
         dao.add(prod);
        return RedirectToAction("Index", "Product");
 }